5e: Path of the Pyrorager

I mentioned before I am working on subclasses for Fifth Edition games. I’ve been working on fighter archetypes, barbarian paths and more. Today I would like to show off one of the barbarian paths I have been working on. It is still unedited (my editors hate it when I do this) so all the kinks might not have been worked out yet. But let us know what you think. I would be interested in hearing your opinion on it.

Path of the Pyrorager

While some barbarians describe themselves as burning with anger, the pyrorager literally catches on fire when they fly into a frenzy. Some pyroragers claim they descend from an ancient red dragon. Many scholars doubt the validity of that claim but only voice such doubts when they are well out of earshot of a pyrorager.

Fiery Fists

Starting when you choose this path at 3rd level, you can choose to enter a pyrorage when you rage. If you do so, your arms and any weapons you hold are wreathed in flames. Your melee and ranged attacks deal an additional amount of fire damage equal to your proficiency bonus. You do not take any damage from your own pyrorage. When your rage ends, you suffer one level of exhaustion.

Flame Body

Beginning at 6th level, your fiery anger spreads over your body. Whenever you enter a pyrorage, you can choose to gain resistance to either cold damage or fire damage. Once that choice is made, it cannot be changed for the duration of the pyrorage.

Immolation

Beginning at 10th level, you become an avatar of fire. While you are in a pyrograge, any creature that damages you with melee attack takes an amount of fire damage equal to your proficiency bonus.

Explosion

Beginning at 14th level, your critical hits unleash terrible fiery damage. While you are in a pyrorage, any critical hits you make deal an additional 5d6 points of fire damage to the creature you attacked. Additionally, all creatures within a 10-foot radius of the attacked creature except yourself 5d6 take points of fire damage. The creatures within 10 feet of the attacked creature can attempt a Dexterity saving throw (DC 8 + your proficiency bonus + your Strength modifier) to reduce this damage by half.